<template>
  <div>
    <el-form ref="deptForm" :model="form" :rules="rules" label-width="120px">
      <el-form-item label="部门名称" prop="name">
        <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
      </el-form-item>
      <el-form-item label="部门编码" prop="code">
        <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
      </el-form-item>
      <el-form-item label="部门负责人" prop="manager">
        <el-select v-model="form.manager" style="width:80%" placeholder="请选择">
          <el-option
            v-for="item in list"
            :key="item.id"
            :value="item.username"
            :label="item.username"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="部门介绍" prop="introduce">
        <el-input v-model="form.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
      </el-form-item>
      <el-form-item label="部门负责人" />
      <el-form-item>
        <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
        <el-button size="small" @click="hCancel">取消</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import { getEmployeeSimple } from '@/api/employees'
import {
  addDepartments,
  getDepartDetail,
  updateDepartments
} from '@/api/departments'
export default {
  props: {
    pid: {
      required: true,
      type: String
    },
    isedit: {
      required: true,
      type: Boolean
    },
    originList: { type: Array, required: true }
  },
  data() {
    const validCode = (rule, value, callback) => {
      console.log('validCode....', value)

      let existCodeList = this.originList.map(item => item.code)

      if (this.isEdit) {
        console.log('现在是编辑状态，正在编辑的id是', this.id)

        existCodeList = this.originList.filter(item => item.id !== this.id).map(item => item.code)
      }
      console.log('existCodeList', existCodeList)

      existCodeList.includes(value)
        ? callback(new Error('编码' + value + '已经存在'))
        : callback()
    }
    const validName = (rule, value, callback) => {
      // 思路：被占用的名字是这个部门的子部门
      let existNameList = this.originList.filter(item => item.pid === this.id).map(item => item.name)
      console.log('validName.... , 当前被校验的名字是', value)
      // const existNameList = ['财务核算部', '薪资核算部']
      // 如果是编辑，则被占用的名字 = 兄弟-自己
      if (this.isEdit) {
        // 1. 找到当前被编辑的元素
        const dept = this.originList.find(item => item.id === this.id)
        // 2. 取出pid(它的父级是谁)
        const pid = dept.pid
        // 3. 过滤： 同一个父级，不包括自己； map： 只要需要名字
        existNameList = this.originList.filter(item => item.pid === pid && item.id !== this.id).map(item => item.name)
      }
      console.log('被占用的名字列表', existNameList)

      if (existNameList.includes(value)) {
        callback(new Error('名字' + value + '已经被占用了'))
      } else {
        callback()
      }
    }
    return {
      form: {
        name: '',
        // 部门名称
        code: '',
        // 部门编码
        manager: '',
        // 部门管理者
        introduce: '' // 部门介绍
      },
      list: [],
      rules: {
        name: [
          { required: true, message: '部门名称不能为空', trigger: 'blur' },
          {
            min: 1,
            max: 50,
            message: '部门名称要求1-50个字符',
            trigger: 'blur'
          },
          { validator: validName, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '部门编码不能为空', trigger: 'blur' },
          {
            min: 1,
            max: 50,
            message: '部门编码要求1-50个字符',
            trigger: 'blur'
          },
          { validator: validCode, trigger: 'blur' }

        ],
        manager: [
          { required: true, message: '部门负责人不能为空', trigger: 'blur' }
        ],
        introduce: [
          { required: true, message: '部门介绍不能为空', trigger: 'blur' },
          {
            min: 1,
            max: 300,
            message: '部门介绍要求1-300个字符',
            trigger: 'blur'
          }
        ]
      }
    }
  },

  created() {
    this.loadGetEmployeeSimple()
    // 如果当前是编辑状态,发请求获取部门详情
    if (this.isedit) {
      this.loadDepartments()
    }
  },
  methods: {
    async loadGetEmployeeSimple() {
      const { data: res } = await getEmployeeSimple()
      // console.dir(res)
      this.list = res
    },
    async doApp() {
      const pid = { ...this.form, pid: this.pid }
      await addDepartments(pid)
      this.$emit('success')
    },
    async doEdit() {
      await updateDepartments(this.form)
      this.$emit('success')
    },

    hSubmit() {
      this.$refs.deptForm.validate(valid => {
        if (valid) {
          this.isEdit ? this.doEdit() : this.doAdd()
        }
      })
    },
    hCancel() {
      this.$refs.deptForm.resetFields()

      this.$emit('closed')
    },
    async loadDepartments() {
      const { data: res } = await getDepartDetail(this.pid)
      console.log('编辑', res)
      this.form = res
      // this.$emit('closed')
    }
  }
}
</script>

<style></style>
